Hesvit S3 LCD Bluetooth 4.0 Smart Bracelet with Data Reminder & Wrist Temperature and Humidity Measurement Support Heart Rate Monitoring. With over hundreds patents pending, Hesvit S3 be one of the best worthy in the wearable intelligent field. All in one screen, patented technology. Multi-data monitoring, calories burned, walking steps, sleeping time, wrist temperature. Steps Reminder: Screen flash for 10s when steps reach an integral multiple of 10,000. Sleep Monitoring: Let the Hesvitband tell you the situation of sleep including deep sleep and light sleep with excellent accuracy. Heart Rate Monitoring: Screen flash for 10s when heart rate is over 100 bpm, support on-the-hour measurement or by pressing the button. Wrist Skin Temperature: Screen flash for 10s when temp. difference between wrist and skin are over 4 ℃, automatic on the hour measurement, such as 1:00, 2:00, etc, total 24 times a day, appropriate changes in clothing. Wrist Humidity / Wrist Temperature / Barometric Pressure: Support on-the-hour test automatically, such as 1:00, 2:00, etc, 24 times in a total day. Data Reminder: Countdown to next menstrual cycle or important data (set by user in APP). 24hrs monitoring the exercise, sleep, physical and environmental condition, easily to handle a healthy life. Buy this product and Save $20 Off for Hesvit S3 LCD Bluetooth 4.0 Smart Bracelet. Use code: ceshesvit at checkout.